*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html{
    padding: 30px;
    /*等于 font-weight:normal size:13px height:1.5 */
    font: normal 13px/1.5 sans-serif;
    /* css 继承 基础字体 */
    color: #546567;
    background-color: #ed6564;
}
.container{
    background: #fff;
    padding: 20px;
}
h3{
    padding-bottom: 10px;
    margin-bottom: 15px;
    border-bottom: 2px solid #ed6564;
}
p{
    background-color: #fff;
    margin: 15px 0;
    color: #388287;
}
button{
font-size: 13px;
padding: 8px 12px;
background-color: #fff;
border-radius: 3px;
box-shadow: none;
text-transform: uppercase;
font-weight: bold;
cursor: pointer;
font-weight: bold;
opacity: 0.8;
outline: 0;
color: #388287;
border: 1px solid #388287;
}
button:hover{
opacity: 1;
}
.center{
text-align:center ;
}